Flume的Sink怎么使用

这篇文章主要介绍"Flume的Sink怎么使用"，在日常操作中，相信很多人在Flume的Sink怎么使用问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答"Flume的Sink怎么使用"的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

Logger Sink

Logs会输出到console，是为了debug用的。

[root@hftest0001 conf]# pwd/opt/apache-flume-1.6.0-bin/conf[root@hftest0001 conf]# vi s-exec_c-m_s-logger.conf agent.sources = exec_tailagent.channels = memoryChannelagent.sinks = loggerSinkagent.sources.exec_tail.type = execagent.sources.exec_tail.command = tail -F /opt/flume-data/exec-tail.logagent.sources.exec_tail.channels = memoryChannelagent.sinks.loggerSink.type = loggeragent.sinks.loggerSink.channel = memoryChannelagent.channels.memoryChannel.type = memoryagent.channels.memoryChannel.capacity = 100[root@hftest0001 apache-flume-1.6.0-bin]# pwd/opt/apache-flume-1.6.0-bin[root@hftest0001 opt]# mkdir -p /opt/flume-data/[root@hftest0001 opt]# touch /opt/flume-data/exec-tail.log[root@hftest0001 apache-flume-1.6.0-bin]# flume-ng agent -n agent -c conf/ -f conf/s-exec_c-m_s-logger.conf ........[root@hftest0001 opt]# echo "Hello Flume" >> /opt/flume-data/exec-tail.log观察console，类似于 Event:{headers{} bodys: xxx xx x x x x Hello Flume }

HDFS Sink

[root@hftest0001 conf]# pwd/opt/apache-flume-1.6.0-bin/conf[root@hftest0001 conf]# vi s-exec_c-m_s-hdfs.conf agent.sources = exec_tail agent.channels = memoryChannelagent.sinks = hdfs_sinkagent.sources.exec_tail.type = execagent.sources.exec_tail.command = tail -F /opt/flume-data/exec-tail.logagent.sources.exec_tail.interceptors = i1agent.sources.exec_tail.interceptors.i1.type = org.apache.flume.interceptor.TimestampInterceptor$Builderagent.sources.exec_tail.channels = memoryChannelagent.sinks.hdfs_sink.type = hdfsagent.sinks.hdfs_sink.hdfs.path = hdfs://10.224.243.124:9000/flume/events/%y-%m-%d =>写入hdfs的路径##roll file的三个策略，(避免生成大量的空文件，或者小文件)#agent.sinks.hdfs_sink.hdfs.rollInterval = 30   =>基于时间:default 30s，设置为0，则disable#agent.sinks.hdfs_sink.hdfs.rollSize = 1024     =>基于文件大小:default 1024bytes,设置为0，则disable#agent.sinks.hdfs_sink.hdfs.rollCount = 10      =>基于文件消息的数量:default 10个，设置为0，则disableagent.sinks.hdfs_sink.hdfs.fileType = DataStream =>flume写入hdfs的文件类型 default:SequenceFile#SequenceFile => 类似于hadoop.io.LongWritable "ora.apache.hadoop.io.ByteWritable..."...#DataStream => 不会对输出进行压缩，即不能再设置hdfs.codeC#CompressedStream =>就会对输出进行压缩，并要求设置可用的hdfs.codeC#agent.sinks.hdfs_sink.hdfs.codeCagent.sinks.hdfs_sink.hdfs.writeFormat = Textagent.sinks.hdfs_sink.hdfs.filePrefix = flume#agent.sinks.hdfs_sink.hdfs.hdfs.callTimeout = 10000 => flume对Hdfs的操作如open，write，flush等等，对network不佳的系统，可以适当的调大该参数agent.sinks.hdfs_sink.channel = memoryChannelagent.channels.memoryChannel.type = memoryagent.channels.memoryChannel.capacity = 100

File Roll Sink

[root@hftest0001 conf]# pwd/opt/apache-flume-1.6.0-bin/conf[root@hftest0001 conf]# vi s-exec_c-m_s-file-roll.conf agent.sources = exec_tail-1agent.channels = memoryChannelagent.sinks = file_roll-1agent.sources.exec_tail-1.type = execagent.sources.exec_tail-1.command = tail -F /opt/flume-data/exec-tail.logagent.sources.exec_tail-1.channels = memoryChannelagent.sinks.file_roll-1.type = file_rollagent.sinks.file_roll-1.sink.directory= /opt/flume-data/file-roll-1#agent.sinks.file_roll-1.sink.rollInterval= 30 => roll file策略，default:30s 生成一个新的文件。设置为0，则disable roll file，即会全部写入单一的文件中agent.sinks.file_roll-1.channel = memoryChannelagent.channels.memoryChannel.type = memoryagent.channels.memoryChannel.capacity = 100

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